21000404884

素因数分解:

$2^2\times {\mathrm{193}}^1\times {\mathrm{691}}^1\times {\mathrm{39367}}^1$

素因数の和:40255

約数の個数: 24

約数和(自身を含む): 36995526848

約数和(自身を除く): 15995121964

約数列:

[1, 2, 4, 193, 386, 691, 772, 1382, 2764, 39367, 78734, 133363, 157468, 266726, 533452, 7597831, 15195662, 27202597, 30391324, 54405194, 108810388, 5250101221, 10500202442, 21000404884]

約数ペア:

[(1, 21000404884), (2, 10500202442), (4, 5250101221), (193, 108810388), (386, 54405194), (691, 30391324), (772, 27202597), (1382, 15195662), (2764, 7597831), (39367, 533452), (78734, 266726), (133363, 157468)]